if 3 > 0:
    print('yes')
    print('ok')

if 10 in [10, 20, 30]:
    print('ok')
else:
    print('no')

if -0.0:
    print('yes')
else:
    print('no')

if [1, 2]:
    print('yes')
else:
    print('no')

if '':
    print('yes')
else:
    print('no')